eligrey

/*
 * apng-detect.js
 * 2010-06-13
 * By Eli Grey, http://eligrey.com
 *
 * Detects if a browser supports the APNG format and sets a
 * global `APNG` boolean indicating if the browser supports APNG.
 *
 * Public Domain.
 * NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.